DAVIS, MRS. ARTHUR P.,
1910 Larch Street, Le Droit Park.
DAVIS, PROF. WM. M., a,
Cambridge, Mass.
DAY, DR. DAVID T.,
Geological Survey. 1411 Chapin Street.
DENNIS, W. H., a,
Coast and Geodetic Survey. 12 Iowa Circle.
DILLER, J. S., a,
Geological Survey. 1804 Sixteenth Street.
DOUGLAS, E. M., a,
Geological Survey. Takoma Park, D. C.
DOW, JOHN M.,
Pacific Mail S. S. Co., Panama, U. S. Colombia.
DUKE, BASIL, a,
Geological Survey. 1831 F Street.
DUNNINGTON, A. F., a,
Geological Survey. 1000 North Carolina Avenue SE.
DURAND, JOHN,
164 Bd. Montparnasse, Paris, France.